• 4 Target Max. Demand (MD) Load Shed Controller• Up to 64 loads may be shed to reach the target MD• MODBUS RTU - PROFIBUS DP V0 available as standard• Up to 96 switching outputs:

- 64 for MD Control- 16 for Power Factor Correction- 16 for Time Block Control

• Up to 32 external switching modules• Universal Power Measurement Display• Bar graphs of kW Demand & U - I harmonics 2nd - 40th

• HP Printer port• PC Prorem software for remote programming/analysis• Front panel size of 288mm x 144mm x 69mm deep

Power Energy Analyser & Logic ControllerMaximum Demand Load Shed Controller

2nd - 40th Voltage & Current Harmonic Analyser

PLEASE NOTEThe number of loads

that can be switched isnow 16 and not 64 and PROFIBUS is no longer

available – onlyMODBUS RTU

Applicatio

ns

Logic

U W

Emax

cos

Measuring Device

Harmonics U - I

Maximum Demand controller

Time controller

Power factor controller

Logic

The function combinations are theconnections between inputs and outputs and internal functions ofthe PROCONT Plc.

PROCONT LOGIC

Digital inputs 1 ... 96

Emax outputs 1 ... 64

Time controller outputs 1 ... 16

Alarm output 1

Flags 1 ... 128

Auxiliary input 1

Input operands Output operands

Timer output 1 ... 8

Keyboard events 1

Comparator outputs 1 ... 32

Power factor controller output 1 ...16

Remote Flag 1 ... 32

Digital outputs 1 ... 96

Request inputs 1 ... 64

Condition inputs 1 ... 64

Operation input 1 ... 64

Tariff inputs (Emax) 2 ... 4

Tariff inputs (power factor correction) 2 ... 4

Flags 1 ... 128

Timer inputs 1 ... 8

Backlight 1

Reset of measuring period 1

Delete energy 1

Printer channels 1 ... 8

Power factor controller

Max. demand controller

Time controller

Comparator

Auxiliary Input

Alarm output

Tariff section power factor controller

4 Separate Target MD settings

160 time block settings

1- 8 Time blocks

Keyboard event

Backlight

Functi

ons

com

bin

ati

ons

Digital inputs (96 max)

Digital inputs (96 max)

ApplicationThe PROCONT is a programmable controller, power analyser,Maximum Demand Controller and Harmonic Analyser all in onecombined into one unique panel mounted instrument.The front panel size is 144 x 288 x 69 deep and there is aneasy to read large size backlight LCD display. This display givesinstantaneous readings of every required electrical value bydepressing the appropriate key on the front panel. In addition,the PROCONT enables the user to evaluate and datalog Max,Min and Average values of any required value. With its ownbuilt in logic controller, commands are given by the PROCONTto operate externally mounted load shedding switch modules.In addition there are facil it ies for up to 32 input switchingmodules to enable external conditions such as temperature or pressure to betaken into account by the instrument, when making its load shed/restoredecisions. Harmonic analysis is at the top of every Electrical Engineers agendatoday and the PROCONT will analyse voltage and current harmonics up to the40th. These can be shown instantly on the LCD display and printed in bargraphform. There is a printer port on the PROCONT - so it is not essential todownload on to a PC first. Each individual harmonic value can be dataloggedand printed out when required. Furthermore, a threshold limit for a switchingfunction can be activated according to the harmonic condition.

The PROCONT is also designed to perform load shedding activities. Selectedloads can be disconnected for pre-selected time periods and priorities. TargetMD can be achieved often resulting in better use of distribution transformersand a consequent saving in capital.

The PROCONT has an integrated time controller enabling the connection/disconnection of selected loads according to time periods, especially usefulfor consumers on STOD Tariffs.

As if all these features were not enough, the PROCONT also incorporates a16 step power factor controller for switching capacitor banks. Variousswitching programs are available.

The PROCONT has RS485, PROFIBUS DP V0 and MODBUS RTU outputs.

Output from the PROCONT can be fed into a PC for detailed load analysis anddata logging utilising the PROREM software program.

U I P W Measuring device

2nd - 40th Harmonic

Quantity to be measured

Current.../5A

Voltage L-N

Voltage L-L

Frequency (U)

Real Power +/-

Apparent Power

Reactive Power

Power Factor

Real Work +/-

Reactive Work +/-

Total Harmonic Distortion THD U - I

Harmonic Distortion Factor HDF U 2-40

Harmonic Distortion Factor HDF I 2-40

Indication

0 ... 99, 100 ...99999A

0 ... 99, 100 ... 99999A

0 ... 99, 100 ... 99999A

45,000 ... 65,000Hz

0 ...9.99, 10 ... 99.99,

100 ... 99999kW

0 ...9.99, 10 ... 99.99,

100 ... 99999kWA

0 ...9.99, 10 ... 99.99,

100 ... 99999kVAr

0.00 cap. ... 1.00 ... 0.00 ind

0 ... 99.99, 100 ... 999.9

Reactive work +/-

1000 ... 99999999kWh

0.0 ... 99.9%

0.0 ... 999.9,

1000 ... 99999V

0.0 ... 999.9,

1000 ... 99999A

L1

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L2

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L3

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ind.

ind.

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cap.

cap.

Sum

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0.05 ... 5A

50 ... 250V

80 ... 440V

45.00 ... 65.00HZ

0 ... 1kW

0 ... 1kWA

0 ... 1kVAr

0.00 cap. ...1.00 ... 0.00 ind

0 ... 99999999kWh

0 ... 99999999kWh

0.0 ... 99.9%

0.1 ... 250V

0.01 ... 5V

Measuring accuracy

� 0.3% Mr + 0.3% Mv

� 0.3% Mr + 0.3% Mv

� 0.3% Mr + 0.3% Mv

� 0.1% Mr + 0.1% Mv

� 0.5% Mr + 0.5% Mv

� 0.5% Mr + 0.5% Mv

� 0.5% Mr + 0.5% Mv

� 2 Digits + 1.0% Mv

� 1.5% Mr + 1.5% Mv

� 1.5% Mr + 1.5% Mv

� 1.5% Mr + 1.5% Mv

Measuring range atscale factor 1

Lowestvalue

Peakvalue

Date /time

Mr: of measuring range, Mv: of measuring value, + consumption, - supply

The 2nd to 40th harmonic are calculated from the scannedvalues of current and voltage by Fourier analysis. Theycan be displayed or printed in bar graphics or curves.

The bar graph contains the harmonic contents from thefundamental up to the 40th harmonic. The bars aredisplayed as a percentage of the fundamental. The curvesand the bar graphics can be scaled. Within the graphics,some additional measured values are displayed.

The scaling of the bar graph can be adjusted to enable verysmall harmonic voltages or currents to be measured.

� 0.5% of measuringrange & dependentupon accuracy ofC.T.’s / external kWhpulse input device.

Maximum Demand Control for64 Load Shed Outputs

Software

Emax

The PROCONT can measure kW Max Demand in two ways:a) From an external kWh pulse input.b) Utilising the internal measurement functions of the PROCONT controller.

Accuracy of the measurement will depend upon the accuracy of the CurrentTransformers, if the PROCONT internal measurement system is used, or theaccuracy of the pulse sender if an external kWh pulse is used.

The PROCONT will continuously monitor the forecast kW Maximum Demand(MD) in the next measurement period. In the UK this is normally 30 minutes butmay be set as required. The PROCONT will continuously measure the actualMD., the forecast MD and the load value in kW (if any) to be disconnected inorder to meet the Target MD value selected.

Having received the command to load shed, the PROCONT then decides whichof up to 64 loads should be selected in order to provide as little disruption tousers as possible. This is achieved by setting priorities with max/mindisconnection times, time block and other parameters as shown in this display.

A kW Load bargraph is stored on the PROCONT for the last 100 days. This canbe printed out directly from the PROCONT printer port if required.

There are 64 channels available for Maximum Demand Load Shed. Channels are connected or disconnected according to the following:

● Power values (target value, mean, actual, trend, correction and connected power)

● Priority and switching mode (normal, cycle, rotation)

● Time settings (min./max. disconnection time, min. connection time, make delay, break delay, switching pause)

Up to 4 different target values can be selected. These can be selected by external or internal commands. Forexample if power from the Supply Company is lost and an emergency or CHP generator is running then a newtarget value can be selected utilising an external input command.

The software program Prorem can be used for programming,reading out and sampling of programmed, measuredand event date.

Programming (send/retrieve):Configuration data, maximum demand controller,power factor controller, time controller, logic

Evaluation (retrieve):Event memory, peak values Max. Demand energy, dailygraphs, peak values measurement.

Em

ax F

unctio

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rorem

Soft

ware

Up to 32 I/O modules can be connected to the

master interface of the PROCONT.

The following modules are available:

MOD6I/6O - 6 inputs / 6 outputs,

MOD12I - 12 inputs,

MOD12O - 12 outputs,

MOD24O - 24 outputs.

Interfa

ces

Function Modules - can be remotely located

Commands from the PROCONT are given to output modules, and external commands are received via input modules.

These commands are given via the master interface within the PROCONT.

Switching is performed by means of the DIN rail mounted input ( I ) and output ( O ) modules. The modules are powered by 24V DIN rail mounted

power supply modules. Commands to the modules are given via the network connector. All modules are in compliance with IEC 1131-2. The I/O

modules can be remotely wired from the PROCONT so as to perform switching functions close to the loads to be shed/restored.

Switching Modules

FunctionModules

Time Controller

The time controller of the PROCONT Control System is equippedwith numerous setting possibilities. With its 16 channels and 160free programmable time blocks, it provides the possibility torealise time programs of daily repeated or one-off intervals withintwenty years.

In addition to the load shedding functions, the time controller canalso change over the target MD settings, according to tariffrequirements. The PROCONT has a built in calendar to takeaccount of leap years, holidays and special national holidays. Theavailable memory space for additional time control operations ispermanently displayed.

The system puts8 timers at yourdisposal. Eachtimer can be usedin differentoperating modes.

The power factor controller provides 16 outputs andworks with up to 4 targets (0.8ind...1.0...0.8cap).The stage power of the first capacitor stage can be set inthe range of 0.00 to 999.99kVAr.

The following stage ratios can be set:1:1:1..., 1:1:2..., 1:2:2..., 1:2:3:6..., 1:2:4...,1:2:4:8..., 1:1:2:4..., 1:2:3:4..., 1:2:3..., 1:1:2:2:4...The time after a connection or disconnection can beprogrammed between 20 and 999s. Rotation orlinear switching is available.

The course diagramcan be seen on the

right side. The runningtime of the timers can be

set in steps between0 and 99999 seconds.

Timer

Power factor controller 16 stepscos

Tim

e c

ontr

oller

Pow

er f

acto

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ntro

ller

Tim

er

Technical Data

Technic

al

data

Auxiliary voltage:Net frequency:Power consumption

Measuring inputs:

Current path:Option:Power consumption:Rated current Long term:Long term overcurrent:Short term overcurrent:Voltage path:Signal frequency:Voltage input:Power consumption:

Auxiliary input:Pulse output:Max switching frequency:Max voltage of the contact:MD measurement periods:Ambient temperature:Storage temperature:Humidity class:Weight:Protection class front/back side:

230V (Option 110V)47 ... 63Hz20VA

5A (50mA ... 5.5A)1A (10mA ... 1.1A)1.25VA at 5AIn = 5A1.2 * In2.4*In (duration: 5s, pause with maximum In: 1h)

45 ... 65Hz for the fundamental60 ... 250V2.75VA at 230V

230V 50/60Hz + activekWh pulse output4.75Hz100V DC, max. 1A10, 15, 30 or 60 minutes0�C ... +45�C-20�C ... +60�CF according to DIN 40040 (15% up to 95% without dew)2.5kgIP 50 / IP 20

Panel Cut-outH137.0 (+1.0) x W281.0 (+1.0)mm

Power Factor Control RelaysOur CA/CB range of PFC controllers are available with 3, 6, 12 and 14 steps and haveoptions for High Harmonic Current and Low Power Factor alarm contacts.

Our CM relay is available with 6 or 12 steps and has RS232/RS485 output, CMWINdata logging software with an integrated multimeter for all electrical values. Unlikemost instruments of this type the CM relay has an LED display and each value isdisplayed by its own tab key; an easy to use, accurate and reliable Power FactorController and multimeter combined.

All PFC controllers are guaranteed against faulty parts and labour for 5 years fromdate of despatch from our factory,

Panel Mounted MultimeterPanel mounted multimeter measuring 96 x 96 x 81mm (deep inc. terminals)measures every electrical value and can be supplied with RS 485 output.The price is extremely attractive. The instrument shown has LEDdisplay and stores max/min values. A range of panel mounted multimeters isavailable with kW pulse output and multimedia card data logging facilities.

Capacitor Switching ContactorThe GE Power Controls capacitor switching contactors in stock. The inrushcurrent is absorbed by current limiting resistors which are in circuit for onecycle - enough to absorb the inrush and enable price savings to be achieved.Contactors for 25, 50 & 100kVAr are kept in stock for the PFC Engineer.

Harmonic Blocking and Tuning ReactorsCapacitor banks are subject to serious overload if there are excessive harmonicson the system. The range of PFC controllers (CA/CB/CM) all have THD harmonicoverload indication and can be supplied with external switching contacts.Reactors are compact and have an excellent name for quality. 50kAVr, 210Hz reactorswith over temperature alarm contacts are normally ex-stock.

Switchboard Rubber MattingWe supply switchboard matting for working voltages up to 17,000V. Rubber mattingconforming to BS921 is in stock along with our range of other electrical safetyproducts, such as insulated tools, gloves, cable preparation tools and insulatingfibre glass ladders.

All products and specifications are subject to change without prior notice as technical developments occur.